Partitioning From Within a Program
You can include instructions in your program to partition memory. This makes it unnecessary to set partitions from the keyboard before running a program. When you set partitions in a program, you must provide all necessary information to the partition function; the function does not prompt you for the information.
Procedure
To set partitions from within a program:- Determine the amount of memory you want to allocate for each of the three areas of user memory.
- Have the program place a value in the numeric display register that has the form:
pppp.ffff
where pppp is the number of program steps and ffff is the number of bytes of file space you want. (You must include any leading zeros in ffff.)
• If you do not want to change the size of the file space, make ffff equal to 0.
• If you want to set the file space to 0 bytes, make ffff in the range 0001 through 0016. - Have the program execute the PAR instruction.
- When the sequence pppp.ffff PAR is executed, the calculator:
• Sets the program memory and file space to the sizes you specified and allocates the remaining user memory to the data registers.
• Places the resulting number of data registers in the numeric display register.
• Places the resulting number of program steps and file bytes (in the form pppp.ffff) in the t-register.
Example
The following program segment partitions user memory to the default settings.PC= | Program Mnemonics | Comments |
|---|---|---|
| 0000 | 1000.5200 | 1000 program steps 5200 bytes file space |
| 0009 | PAR | Sets the partitions |
| 0010 | ... | |
| ... | (Remainder of the program) | |
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